SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
CesiumAstro logo CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms. vs Perigee Aerospace Develops small-lift methane-fueled launch vehicles and manufactures liquid propulsion systems, composite tanks, and satellite thrusters Perigee Aerospace logo
HEAD-TO-HEAD1 shared sector
CesiumAstro Perigee Aerospace
Founded 2017 2018
Headquarters Austin, Texas, USA Daejeon, South Korea
Type private private
Status operating operating
Employees 318 16
Total funding $710.2M $56.6M
Latest round Series C Series D
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Launch Services, Satellite Components & Subsystems, Space Propulsion
Products listed 15 6
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Yoon Shin, Seonghyeon Seo, Alan Kim
News mentions 26 15
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and Perigee Aerospace compare?

Both companies work in Satellite Components & Subsystems. CesiumAstro was founded in 2017 and Perigee Aerospace in 2018.

Which is larger, CesiumAstro or Perigee Aerospace?

CesiumAstro reports the larger workforce, with 318 employees versus 16.

Numbers refresh on every render against the live Space Index database. Federal contract data from USAspending.gov; launches from LaunchLibrary2.